TestLocalActionWithConfig.php

<?php

namespace Drupal\menu_test\Plugin\Menu\LocalAction;

use Drupal\Core\Config\Config;
use Drupal\Core\Menu\LocalActionDefault;
use Drupal\Core\Routing\RouteProviderInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\Request;

/**
 * Defines a test local action plugin class.
 */
class TestLocalActionWithConfig extends LocalActionDefault {
    
    /**
     * @var \Drupal\Core\Config\Config
     */
    protected $config;
    
    /**
     * {@inheritdoc}
     */
    public function getTitle(?Request $request = NULL) {
        return $this->config
            ->get('title');
    }
    
    /**
     * Constructs a TestLocalActionWithConfig object.
     *
     * @param array $configuration
     *   A configuration array containing information about the plugin instance.
     * @param string $plugin_id
     *   The plugin ID for the plugin instance.
     * @param mixed $plugin_definition
     *   The plugin implementation definition.
     * @param \Drupal\Core\Routing\RouteProviderInterface $route_provider
     *   The route provider to load routes by name.
     * @param \Drupal\Core\Config\Config $config
     *   The 'menu_test.links.action' config.
     */
    public function __construct(array $configuration, $plugin_id, $plugin_definition, RouteProviderInterface $route_provider, Config $config) {
        parent::__construct($configuration, $plugin_id, $plugin_definition, $route_provider);
        $this->config = $config;
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
        return new static($configuration, $plugin_id, $plugin_definition, $container->get('router.route_provider'), $container->get('config.factory')
            ->get('menu_test.links.action'));
    }

}